5th European Conference on Speech Communication and Technology

Rhodes, Greece
September 22-25, 1997

Covariation of Subglottal Pressure, F0 and Glottal Parameters

Gunnar Fant, Stellan Hertegard (1), Anita Kruckenberg, Johan Liljencrants

Dept. of Speech, Music and Hearing, KTH, Stockholm, Sweden
(1) Huddinge University Hospital, Stockholm, Sweden

Sub- and supraglottal pressures, Psub and Psup, have been recorded during glissando phonation of sustained vowels, isolated vowels, and continuous speech including a one minute Iong reading of a novel. Studies of the covarition of Psub, F0, voice excitation amplitude Ee and overall sound pressure Ieve1 reveal systematic relations some of which can be expressed in closed form by regression equations. Systematic differences in Psub with respect to position in a breathgroup, vowel and consonant category and the degree of stress have been observed. The domain of subglottal increase with stress is of the order of one or a few words rather than a single syllable. The global contour of Psub within a breathgroup and the Ioca1 finestructures of Psub and transglottal pressure, Ptr=Psub-Psup associated with specific articulatory events are described and discussed.

Full Paper

Bibliographic reference.  Fant, Gunnar / Hertegard, Stellan / Kruckenberg, Anita / Liljencrants, Johan (1997): "Covariation of subglottal pressure, F0 and glottal parameters", In EUROSPEECH-1997, 453-456.